Worst customer service

I called Nedbank 3wks ago to increase the limit on my credit card. The consultant asked me to forward my documents which I did on the same day. She said it would take about 3-5days to get a response. I didn’t receive any feedback so I called back after 5days to be told my documents were not received. I then forwarded it directly to the consultant and she rep**** to my email confirming that she received it and would escalate the query. After 2 days still no response so I called in again. Spoke to another consultant who says no documents received. I forward to her and she also responds to my email confirming receipt of the documents. On the 22 December I still didn’t hear anything so I call the complaints dept. They lodge my complaint and give me a reference no and the consultant says it will be resolved within 24hrs. Someone called me on the 22nd to say my documents have been received and I will receive feedback by the end of the day? Still no response. I called in today. Spoke to Gugu Dube who says the consultant who’s handling my complaint is on leave and will only be back on the 15January 2018. She asked me to call back before 4 today to check if there’s any feedback. Is this the customer service that one receives from such a reputable organization? I’m really disappointed and disgusted that I was led on and **** to on numerous occasions. I have more than 6 accounts with Nedbank and I will now be moving to another bank. I don’t think deserve to be treated like a fool. I would never recommend anyone to Nedban****